NSW Labor leader Luke Foley is hopeful he can topple two Liberal leaders with a win in Saturday's election.
Mr Foley told a Labor party rally in Sydney on Sunday that defeat for Premier Mike Baird would also spell the end for Prime Minister Tony Abbott.
"If Mr Baird goes on Saturday, Mr Abbott goes on the Monday," he told a crowd of about 200 party faithful in the inner-western suburb of Burwood.
Mr Foley, who continues to lag in the polls, said he remains confident of snatching government from the Liberals.
He drew on the example of Victorian Labor Premier Daniel Andrews, who joined Mr Foley on-stage for the first time during the NSW campaign.
"People said Daniel Andrews and Victorian Labor couldn't unseat a first-term conservative government," Mr Foley said.
"They were wrong.
"They say we can't unseat a first-term conservative government. In six days, we'll prove them wrong."
Mr Foley devoted much of a 20-minute speech to rubbishing his opponent's plan to part-privatise the state's poles and wires.
He repeated the mantra that bills would rise and that the state would lose valuable dividends, and described Mr Baird's election promises as "blackmail".
"We will keep the profits from the state-owned electricity network to invest in the frontline services this state always needs," he said.
"Mr Baird will send the profits to a private owner and permanently rob the state of the funds it needs to serve our community."
"Shame," the crowd responded.
Mr Foley later told reporters Labor will continue to oppose the privatisation even if Mr Baird wins a mandate.
"Win, lose, or draw, Labor will vote in the next parliament for the electricity network to remain in public hands.
He also delivered a veiled dig at his opponent's decision to launch the Liberal party campaign at the City Recital Hall on Sunday.
"It was a privilege to launch Labor's campaign in Campbelltown. The Liberals are launching in the central business district," he said.
"We're in the suburbs, with the people, with the community, speaking up for community values."
A News Corp poll released on Sunday shows Mr Baird is on course to claim victory, with the coalition leading 54-46 on a two-party basis.
